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NXP Semiconductors
UM191812
PN544 C2 User Manual
191812
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© NXP B.V. 2010. All rights reserved.
User Manual
Rev. 1.2 — 2010-06-16
125 of 172
9.12.2 Target
When a remote NFC initiator has activated the local NFC target handled in the PN544,
the host receives the proprietary event “NXP_EVT_NFC_ACTIVATED”. Then the host
can exchange data with the remote peer receiving event “NXP_EVT_NFC_RCV_DATA”
and using event “NXP_EVT_NFC_SND_DATA”. When the remote NFC initiator closes
the communication, the host receives event “NXP_EVT_NFC_DEACTIVATED”.
Fig 67. NFC-IP1 Target
Note: In case of
NFC target active mode
, the clock may be requested (according to
PlClockRequest
configuration) as PN544 shall generate its own field.